Some Basic Concepts Of Chemistry Question 4

Question: A gaseous mixture contains $ CO _2(g) $ and $ N _2O(g) $ in 2 : 5 ratio by mass. The ratio of the number of molecules of $ CO _2(g) $ and $ N _2O(g) $ is

Options:

A) 5:2

B) 2 : 5

C) 1 : 2

D) 5 : 4

Show Answer

Answer:

Correct Answer: B

Solution:

$ CO _2(g) $ $ N _2O(g) $ Weight 2w 5w No. of mole $ \frac{2w}{44} $ $ \frac{5w}{44} $ No. of molecules $ \frac{2w}{44}\times N _{A} $ $ \frac{5w}{44}\times N _{A} $ Ratio $ 2:5 $



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